mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
3b32bd6a72
This CL adds support to SkyShell for drawing with Ganesh. Currently, we don't actually create any SkPictures to draw, but that will come in a later CL. R=eseidel@chromium.org Review URL: https://codereview.chromium.org/891143002
72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
// Copyright 2015 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#include "sky/shell/gpu/rasterizer.h"
|
|
|
|
#include "sky/shell/gpu/ganesh_context.h"
|
|
#include "sky/shell/gpu/ganesh_surface.h"
|
|
#include "third_party/skia/include/core/SkCanvas.h"
|
|
#include "third_party/skia/include/core/SkPicture.h"
|
|
#include "ui/gl/gl_bindings.h"
|
|
#include "ui/gl/gl_context.h"
|
|
#include "ui/gl/gl_share_group.h"
|
|
#include "ui/gl/gl_surface.h"
|
|
|
|
namespace sky {
|
|
namespace shell {
|
|
namespace {
|
|
|
|
gfx::Size GetSize(SkPicture* picture) {
|
|
const SkRect& rect = picture->cullRect();
|
|
return gfx::Size(rect.width(), rect.height());
|
|
}
|
|
|
|
} // namespace
|
|
|
|
Rasterizer::Rasterizer() : weak_factory_(this) {
|
|
}
|
|
|
|
Rasterizer::~Rasterizer() {
|
|
}
|
|
|
|
base::WeakPtr<Rasterizer> Rasterizer::GetWeakPtr() {
|
|
return weak_factory_.GetWeakPtr();
|
|
}
|
|
|
|
void Rasterizer::Init(gfx::AcceleratedWidget widget) {
|
|
share_group_ = make_scoped_refptr(new gfx::GLShareGroup());
|
|
surface_ = gfx::GLSurface::CreateViewGLSurface(widget);
|
|
CHECK(surface_) << "GLSurface required.";
|
|
CHECK(CreateGLContext()) << "GLContext required.";
|
|
}
|
|
|
|
void Rasterizer::Draw(skia::RefPtr<SkPicture> picture) {
|
|
// TODO(abarth): We should handle losing the GL context.
|
|
CHECK(context_->MakeCurrent(surface_.get()));
|
|
EnsureGaneshSurface(GetSize(picture.get()));
|
|
|
|
SkCanvas* canvas = ganesh_surface_->canvas();
|
|
canvas->drawPicture(picture.get());
|
|
canvas->flush();
|
|
|
|
surface_->SwapBuffers();
|
|
}
|
|
|
|
bool Rasterizer::CreateGLContext() {
|
|
context_ = gfx::GLContext::CreateGLContext(share_group_.get(), surface_.get(),
|
|
gfx::PreferIntegratedGpu);
|
|
if (!context_)
|
|
return false;
|
|
ganesh_context_.reset(new GaneshContext(context_.get()));
|
|
return true;
|
|
}
|
|
|
|
void Rasterizer::EnsureGaneshSurface(const gfx::Size& size) {
|
|
if (!ganesh_surface_ || ganesh_surface_->size() != size)
|
|
ganesh_surface_.reset(new GaneshSurface(ganesh_context_.get(), size));
|
|
}
|
|
|
|
} // namespace shell
|
|
} // namespace sky
|